Sage Burner 50k/25k Trail RaceThe Sage Burner is a moderate 25k and 50k run through the sage of the Gunnison valley. This race will take you to the top of the world literally as you run at 8000 feet of elevation.

Salt PointLocated along the rugged California coastline, these trails travel through forested hills, open grasslands, pristine prairies, and pygmy forests with panoramic views of rocky coves and the Pacific Ocean.

50 K

CaliforniaJenner

San Diego 100The course will go north on the Pacific Crest Trail for 43 miles. Runners will then follow dirt jeep roads to the 50 mile point at the Banner Store. Runners will then retrace the course finishing at Lake Morena.

100 Mile

CaliforniaEl Cajon

San Juan Soltice 50The San Juan Solstice 50 mile endurance run is a scenic and very difficult loop through the high San Juans. 12,000'+ elevation gain; mostly trails, some jeeproads. Middle-of-pack runner: expect 12-14 hours. 16:00 cut-off.

50 Mile

ColoradoLake City

San Juan Trail 30K31 miles of mostly single trail and truck road. between 3000 and 2000 ft elevation. Aid stations etc.

Scorched Sole UltraA 25k, 50k, 50mi ultra run on a different course every year. This year, the 8th, will take the 50k and 50mi runners over the peak of Little White Mountain at 7200'. The views are spectacular and the ...(continued)

Seacliff Beach Trail RunStart at scenic Seacliff State Beach and travel to The Forest of Nisene Marks State Park. After a tranquil tour of the forest, return to Seacliff for a spectacular finish and post-run picnic.

Seneca Creek Greenway Trail Marathon & 50KParticipants should be comfortable running on and navigating trails, running independently and able to complete the marathon distance. The course is over 95% single track dirt trails, includes water crossings and depending on the weather, could be sloppy and/or slippery.

50 KMarathon

MarylandDamascus

September 11th 50KThe Annual September 11th 50K. Fat Ass 50K around the island of Manhattan to honor September 11th. Great way to honor the day.

50 K

New YorkNew York

Shadow of the Giants 50KScenic historic trails through the Sierra National Forest. The run takes you past 3000 year old Giant Sequoias in the famous Nelder Grove. The Fun Run loop is actually 11K, but who's counting? Elevation is 5,000 - 6,500 ft. Time limit 8 hours. Pets are not allowed on the trail, so please leave your doggies at home!

50 K20 K

CaliforniaFish Camp

Sheep Mountain 50-Mile Endurance RunThe Sheep Mountain 50 throws everything it has at runners, challenging you from start to finish, among the mountains and hills lining the western slope of the South Park Valley. Runners looking for a ...(continued)

Silver City Endurance RunsDon’t miss Idaho’s first real 100k in the spectacular hills surrounding the historic mining town of Silver City, Idaho. On this tremendously diverse and beautiful course, the scenic vistas are unpara ...(continued)

100 K50 K30 K

IdahoSilver City

Silver Comet Ultra RunsMark February 25th, 2006 on your ultra-running calendars !! This will be the date of the running of the Silver Comet Ultra Runs – 50Km and 100Km, sponsored by the Georgia Ultrarunning and Trailrunning Society (GUTS). The course will be an out and back of 25Km on a flat, paved, bike path,that is closed to vehicular traffic. Starting just outside of Atlanta, in Rockmart, the course winds its way along the Silver Comet Trail through the quiet countryside.

100 K

GeorgiaRockmart

Silver Moon RaceHow many laps can you run in 6, 12, or 24-hours? Test your endurance and build up your distance in a 2-mile lap race, or go for the 100-mile distance.

100 Mile24 Hours12 Hours6 Hours

Californiareedley

Silverheels 100-Mile Endurance RunThe Grand-Daddy of all the Human Potential Running Series Races, The Silverheels 100. Put on your dancing shoes and bring everything you’ve got in you to tackle this monster of a 100 miler. A true mou ...(continued)

100 Mile

ColoradoFairplay

Silverton 72 Hour RunThe 3rd Annual Silverton Multi-Day Challenge is actually 6 races in one. The 6 day & 1000 Mile Runs
will start on August 28th, the 72 hour on August 31st, the 48 hour on September 1st and the 24 hour ...(continued)

Siskiyou Out Back Trail RunsJoin us high above the Rogue Valley, for a spectacular jaunt through beautiful virgin forest in a truly alpine setting. This event begins and ends at the Mount Ashland Ski Area lodge at an altitude of 6,500 feet!

Skyline Ridge Trail Runs 14K, 23K, 37K, 50K The course is within the Skyline Ridge, Long Ridge, and Russian Ridge Open Space Preserves. The majority of the course is along the Bay Area Ridge Trail with spectacular views of the Pacific Ocean and Santa Cruz Mountains. You will travel across expansive meadows, through dense forests, and around quiet Horseshoe Lake and Alpine Pond.

SLO Ultra @ Wild Cherry CanyonDon't be fooled by our sexy logo or live bluegrass music, fresh hometown BBQ, ice cold beer and The North Face race swag. This race will take you over wild undiscovered territories along the majestic California coastline where it's rough, it's rugged, and it's dirty. In private Wild Cherry Canyon you will have to dig deep to earn that sweet medal and hot cherry pie.

50 MileMarathonHalf Marathon5 K

CaliforniaSan Luis Obispo

Sloppy Cuckoo 12 hour ChallengeThe Sloppy Cuckoo 12 hour challenge takes place at Pennypack Park, a beautiful oasis within the city of Philadelphia. We designed a 6.55 mile loop that is very runnable , incorporates gorgeous views of Pennypack Creek, offers enough variety to keep you occupied for the entire day and is just easy enough to cover long distances.

Spokane River RunSunday April 18 Trail Run of 5k, 10k, 25k and 50k all along the Spokane River and on unpaved trails

50 K25 K10 K5 K

WashingtonSpokane

Spokane To Sandpoint Team RelayThe ZANIEST 190 mile Team Relay in the Northwest! The race starts at Mt. Spokane Ski Resort and then proceeds through 15 different towns en route to the finish at the beach in scenic Sandpoint, Idaho Regular teams of 12 or Ultra teams of 6 race through some of the BEST places in Eastern Washington and Northern Idaho, compete in fun contests along the way like Wild Wig, Awesome Costume, and Brightest Running Outfit, and get to ride a Rollercoaster midrace! You heard it right, teams will ride Silverwood Theme Parks Tremors Rollercoaster shortly after midnight. Gather your friends and join in the FUN!

190 Miles

WashingtonSpokane

Spooners Cove Trail RunEnjoy views of rugged cliffs, sandy beaches and vast expanse of the ocean at the "Mountain of Gold".

St. Pats 24 Hour24 hour,12 hour, and 6 hour races being held on the scenic grounds of St. Pat's Park along the St. Joe River in South Bend, Indiana.
Proceeds of the St. Pats 24 Hour Race will go to support Frien ...(continued)

24 Hours12 Hours6 Hours

IndianaSouth Bend

Steal the Seal 50K50k annual historical run between the old and new capital buildings Oklahoma Guthrie

50 K

OklahomaOklahoma City

Stevens Creek 50KA mix of single-track and fireroad, covered woods and open hillsides. Two crossings of Stevens Creek; depending on rain in the days before the event, one will probably require getting wet. Course drai ...(continued)

50 K

CaliforniaSanta Cruz

Stinson BeachThese hilly, scenic courses travel from the ocean at Stinson Beach. All events head east up the Dipsea trail with excellent views of the Pacific Ocean.

Sundance Trail Run 50kThe Sundance Trail Run is a scenic 50k loop of Bearlodge Mountain trails in the Black Hills of North East, Wyoming. The 50k loop is 80% single track with short sections of forest road that take the ru ...(continued)

Superior Trail 25K and 50KTake the Superior Trail challenge and see breathtaking views along the North Shore of Lake Superior. These runs are entirely on trails in the vicinity of Lutsen, Minnesota. The National Forest Service and Backpacker Magazine have ranked the Superior Hiking Trail as one of the top hiking trails in the United States.

50 K25 K

MinnesotaLutsen

Surf the MurphThis is a suburban course through the beautiful Murphy-Hanrehan Park in Savage, MN. All races are on trails with 2 miles of single track, although the south end of the course runs like a single track ...(continued)

50 Mile50 K25 K

MinnesotaSavage

Survival Run Nicaragua 2018This is not your average ultra marathon, adventure race or obstacle course. You will not be scaling walls, doing burpees, kayaking or just running for hours on end.

80 K

NICARAGUAIsla de Ometepe

SURVIVAL RUN: HUNTER GATHERER (USA) | 2ND ANNUAL An Application only 50k Ultra Distance Survival Race in the beautiful but rugged Texas Hill Country. Everything out here bites, stings, scratches and just plain hurts. The objective of this race is to ...(continued)

50 K

TexasRocksprings

Susitna 100 & Little Su 50KThe current 100-mile course has evolved through a history of tradition, opportunism, stubbornness, and confusion. After hosting our races for 14 years, the Big Lake Lodge has closed. We will no longer be able to start and finish the race on Big Lake. Every ultra-distance race course has a cruel joke somewhere; ours has always been the seemingly endless crossing of Big Lake at the end of 100 miles.

Swamp Rabbit Trial Urban Ultra 50k This is an urban ultra run, (meaning lots of pavement – some easy trails). You will run approximately 5 miles of groomed trails in Conestee Park, 4 miles on paved roads and about 22 miles on the paved Swamp Rabbit Trail. There are rolling hills in the first 4 miles and the last 4 miles. Course may change within Conestee Park to accommodate finish line. All sections on GHS Swamp Rabbit Trail will remain the same.
This is an out an back course and there will be 6 aid stations – 3 aid stations going out and the same 3 on the return.